Convolvulus equitans

Species category

Weed

Common name

Texas bindweed

Diagnostic characters

Planting unit

True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.

Shape

ObovateObovate:
Inverted egg shaped with apical end the broadest.
with two flat sides

Size

Length 3–4 mm
Width 2.5–2.6 mm
Thickness 2.5–3 mm

Color

Black to gray

Texture

GranularGranular:
Resembling or consisting of small grains or particles.
and rough

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
is oblique to the seed axis and large and blunt.

Identification notes

Seed is somewhat similar to those of C. arvensis except the surface texture is not the irregular tuberculateTuberculate:
Having small pimple-like protuberances.
type, but more granularGranular:
Resembling or consisting of small grains or particles.
. The axis of the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
is not parallel to the seed axis.

Noxious weed seed categories

State Noxious Weed: Utah

AOSA examination list

Not included

Nomenclature

Family

Convolvulaceae

Valid name

Convolvulus equitans Benth.

Synonyms

Convolvulus hermannioides A. Gray
Convolvulus simulans L.M. Perry

From Left to Right: 1. Convolvulus equitans 2. Calystegia sepium 3. Convolvulus arvensis. Granular seeds.	From Left to Right: 1. Ipomea hederacea 2. Ipomea purpurea 3. Calystegia sepium 4. Convolvulus arvensis 5. Convolvulus equitans 6. Jacquemontia tamnifolia. Seeds with a granular texture.
Convolvulus equitans. Seeds have a rough, granular texture.	Convolvulus equitans. Seeds have a rough, granular texture.
Convolvulus equitans. Seeds with a hilum that is oblique to the seed axis.